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Air Pollution Exposure Monitoring among Pregnant Women with and without Asthma.

2020 Jul 07

Journal Article

Ha, S.; Nobles, C.; Kanner, J.; Sherman, S.; Cho, S.H.; Perkins, N.; Williams, A.; Grobman, W.; Biggio, J.; Subramaniam, A.; Ouidir, M.; Chen, Z.; Mendola, P.

Int J Environ Res Public Health





: We monitored exposure to fine particulates (PM), ozone, nitrogen dioxide (NO), and ambient temperature for pregnant women with and without asthma. : Women ( = 40) from the Breathe-Well-Being, Environment, Lifestyle, and Lung Function Study (2015-2018) were enrolled during pregnancy and monitored for 2-4 days. Daily pollutants were measured using personal air monitors, indoor air monitors, and nearest Environmental Protection Agency's stationary monitors based on GPS tracking and home address. : Personal-monitor measurements of PM, ozone, and NO did not vary by asthma status but exposure profiles significantly differed by assessment methods. EPA stationary monitor-based methods appeared to underestimate PM and temperature exposure and overestimate ozone and NO exposure. Higher indoor-monitored PM exposures were associated with smoking and the use of gas appliances. The proportion of waking-time during which personal monitors were worn was ~56%. Lower compliance was associated with exercise, smoking, being around a smoker, and the use of a prescription drug. : Exposure did not vary by asthma status but was influenced by daily activities and assessment methods. Personal monitors may better capture exposures but non-compliance merits attention. Meanwhile, larger monitoring studies are warranted to further understand exposure profiles and the health effects of air pollution during pregnancy.

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